Malt-kiln.



PATENTED SEPT. 1, 1908. W. H. PRINZ.

2 SHEETSSHBET' 1.

M V/206277271 Wm M MALT KILN APPLICATION FILED MAR.25,1907.

1m: uanms PETERS co., b'usnmamu, n. c,

PATENTEiJ SEPT. '1,- 1908.

2 SHEETS-SHEET 2.

W. H. PRINZ.

MALT KILN APPLICA'JIION FILED MAE. 25,1907. 7

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mzmus Primes co., WISHINGTON. n c.

UNITED STATES PATENT orrron WILLIAM H. PRINZ, OF OAK PARK, ILLINOIS,ASSIGNOR OF ONE-THIRD TO CHARLES A. ILAMONDON AND ONE-THIRD TO GEORGEPLAMONDON, OF CHICAGO, ILLINOIS.

MALTFKILN.

Specification of Letters Patent.

Patented Sept. 1, 1908.

Application filed March 25, 1907. Serial No. 364,485.

To all whom it may concern:

Be it known that I, WILLIAM H. PRINZ, a citizen of the United States,residing at Oak Park, in the county of Cook and State of Illinois, haveinvented certain new and useful Improvements in Malt-Kilns, of which thefollowing is a specification, reference being had to the accompanyingdrawings.

My invention relates to malt-kilns of the general type illustrated anddescribed in my patents, No. 515,840, dated March 6, 1894, and No.605,012, dated May 31, 1898, in

which the malt is placed in compartments on the upper floors of thebuilding and is supplied with hot air from a furnace located on theground floor.

My present invention has particularly to do with malt-kilns in whichmalt compartments are provided on two or more floors, provision beingmade for dumping the floor or floors to deposit the malt in thecompartments of the lower fioor,-the upper floor being used forwithering the malt and the lower floor or floors for finishing it. Inthe accompanying drawings I have illustrated only two floors, but itwill be understood that more than two may beemployed if desired.

In a malt-kiln it is very important in drying the malt to expel themoisture of the wet malt on the upper or withering floor quickly, therapidity of the drying depending to a certain extent upon the characterof the malt wanted, and this must be done by sup lying to it a largeamount of cool air; whi e in the case of the malt on the finishing floora less amount of air at a higher temperature is used.

My present invention has for its object to provide a new and improvedconstruction of kiln by which the air supplied to the different floorsmay be accurately controlled, both as to quantity and temperature; alsoto pro vide improved means for properly mixing the air and forregulating the amount of vacuum maintained in any of the dryingchambers; also to provide a construction by which the kiln may beoperated more economically as regards fuel consumption, at the same timeproducing malt of superior quailty by reason of the fact that the airsupplied may be more accurately controlled,

as above stated. I accomplish these objects as illustrated in thedrawlngs and as hereinafter described.

That which I believe to be new is set forth in the claims.

In the accompanying drawings,-Figure 1 is a cross-sectional view of myimproved kiln; and Fig. 2 is a longitudinal section thereof.

Referring to the drawin s, 34 indicate the side walls of the buiIding, 5being an intermediate partition which forms one of the side walls of thekiln proper.

67 indicate the end walls of the building.

8 indicates the kiln furnaces, which, as shown in the drawings, are onthe ground floor. 9 indicates the furnace room, which is also on theground floor and communicates with the external atmosphere by an opening10 having a door 11 which may be of any suitable construction. Byopening the door external air may be admitted directly to thefurnace-room.

12 indicates heating coils, which extend across the furnace-room 9 ashort distance from the opening 10, forming a fresh-air chamber 13, asshown in Fig. 2.

14 indicates a valve arranged at the upper portion of the chamber 18,which when in a horizontal position closes said chamber at the top,thereby compelling air admitted through the opening 10 to pass throughthe coils 12, which are heated, preferably by exhaust steam. The valve14 may be turned to an upright position, thereby permitting the air inthe chamber 13 to pass directly upward therefrom into a flue 15 arrangedadjacent to the wall 6, as shown in Fig. 2. A similar flue 16 isprovided at the opposite end of the kiln, which communicates at itslower end with the chamber 9.

17 indicates a finishing floor provided with one or more compartl'nents18 adapted to contain malt. Said compartments are provided withperforated dumping floors 19 of any suitable type, on which the malt isplaced while being finished. By dumping said floors the finished maltmay be dumped into hoppers 20 placed below the finishing floor, as shownin Fig. 1, and delivered therefrom in any suitable way, as byscrew-conveyers 21, shown also in Fig. 1.

22 indicates a hood or hoods which deflect the malt into the hoppers 20in the usual way.

It will be understood that the space between the furnaces 8 and thefinishing floor 17 forms a hot-air chamber 26, as it receives the hotair from the furnaces.

23 indicates a series of levers by which the various sections of thedumping floor 19 may be tilted to dump the finished malt, and 24indicates the usual helical agitators forturn ing the malt in thefinishing compartments. Said turners are rotated by the usual rope drivemechanism, as illustrated.

25 indicates an opening affording communication between the flue 15 andthe hotair chamber 26, above referred to. Said opening or passage iscontrolled by a valve 27, as shown in the drawings,28 being a lever bywhich said valve is rocked to control the operative area of the opening25. 29 indicates a similar opening between the flue 15 and the finishingchamber 17, which opening is also controlled by a valve 30.

33 indicates an imperforate dumping floor, which lies above thefinishing chamber on a level slightly below the upper ends of the fines15-16, as shown in Figs. 1 and 2. Said dumping floor is dumped by alever 34.

35 indicates a valve in the upper end of the flue 15 for controlling theoperative area thereof.

36 indicates a withering chamber, which lies above the dumping floor 33and is provided with one or more withering compartments 37 havingperforated dumping floors 38 similar to the dumping floor 19 andcontrolled by levers 39, shown in Fig 1. The withering compartments areprovided with helical turners 40 similar to the turners 24.

41 indicates afan at the top of the building, which communicates withthe upper portion of the withering chamber, so that it draws air fromsaid chamber and discharges it at the top of the building.

42 indicates a number of distributing conveyers for delivering malt tothe withering compartments. Said conveyers, however, have nothingwhatever to do with my present invention, and further descriptionthereof is deemed unnecessary.

The flue 16 is equipped with valves and valve passages in the samemanner as the flue 15,-the parts being correspondingly numbered, and aheating coil 12 and valve 14 are also provided for controlling theadmission of air at the opposite end of the building.

If desired, by closing the valves 1 1 external air may be shut off, allthe air admitted to the upper floor being supplied from the kilnfurnaces 8, and such air may be permitted to pass up through the malt inthe finishing compartments, or a greater or less part of it may beconducted around the finishing chamber by opening the valves 27 and 35so as to permit the air to rise through the flues 1516 without passingthrough the perforated floor 19. By this arrangement hot air directlyfrom the furnaces may be ad mitted to the withering floor. Furthermore,air may be admitted to the finishing floor above the malt from the flues1516 by opening the valves 30 and closing the valves 35. Again, freshair may be admitted directly to the flues 15-16, or it may be admittedto said flues after passing through the heaters 12, and may bedistributed to the several chambers by properly adjusting the severalvalves. The space above the dumping floor 33 constitutes a chamber inwhich air from the air shafts or flues 1516 may be thoroughly mixedbefore being admitted to the malt on the withering floor, thus making itpossible to very accurately control the qu antity and temperature of theair supplied to the malt.

That which I claim as my invention and desire to secure by LettersPatent, is,

1. A malt-kiha, comprising a furnace, a plurality of perforated floorsabove'said furnace,

means for conducting heated air from said furnace through the malt onsaid floors means for conducting external air through the malt on saidfloors, and auxiliary means for heating the external air.

2. A malt-kiln, comprising a furnace, a finishing floor, a witheringfloor above said finishing floor, means for conducting heated air fromthe furnace through the malt on said finishing floor, means forconducting heated air from the furnace through the malt on the witheringfloor without its passing through the malt on the finishing floor, andmeans for supplying external air to the malt on the finishing floor.

3. A malt-kiln, comprising a furnace, a finishing floor, a witheringfloor above said finishing floor, means for conducting heated air fromthe furnace through the malt on said finishing floor, means forconducting heated air from the furnace through the malt on the witheringfloor without its passing through the malt on the finishing floor, andmeans for conducting external air to the malt on the withering floor.

4. A malt-kiln, comprising a furnace, a finishing floor, a witheringfloor above said finishing floor, means for conducting air from thefurnace to said floors means for conducting external air through themalt on the finishing floor, and auxiliary means for heating theexternal air.

5. A malt-kiln, comprising a furnace, a finishing floor, a witheringfloor above said finishing floor, means for conducting air from thefurnace to said floors means for conducting external air through themalt on the withering floor, and auxiliary means for heating theexternal air.

6. A malt-kiln, comprising a furnace, a finishing floor, a witheringfloor above said finishing floor, an imperforate floor between saidfinishing and withering floors, and means for conducting heated air fromsaid furnace to the withering floor and to the finishing fioor.

7. A malt-kiln, comprising a furnace, a finishing floor, a witheringfloor above said finishing floor, an imperforate floor between saidfinishing and withering floors, means for conducting heated air fromsaid furnace to the withering fioor and to the finishing floor, andmeans for controlling the distribution of air to said floors.

8. A maltl-:iln, comprising a furnace, a finishing floor, a witheringfloor above said finishing floor, an imperforate floor between saidfinishing and withering floors, means for conducting heated air fromsaid furnace to the withering floor and to the finishing floor,

and means for supplying external air to said withering and finishingfloors.

9. A malt-kiln, comprising a furnace, a finishing floor, a witheringfloor above said finishing floor, an imperforate floor between saidfinishing and withering floors, means for conducting heated air fromsaid furnace to the withering floor and to the finishing floor, meansfor controlling the distribution of air to said. floors, and means forsupplying external air to said withering and finishing floors.

. 10. A malt-kiln, comprising a furnace, a finishing fioor, a witheringfloor above said finishing floor, an imperforate fioor between saidfinishing and withering floors, means for conducting heated air fromsaid furnace to the withering floor and to the finishing floor, meansfor sup lying external air to said withering and ishing floors, andauxiliary means for heating the external air.

11. A malt-kiln, comprising a furnace, a finishing floor, a witheringfloor above said finishing floor, an imperforate floor between saidfinishing and withering floors, means for conducting heated air fromsaid furnace to the withering fioor and to the finishing floor, meansfor controlling the distribution of air to said floors, means forsupplying external air to said withering and finishing floors, andauxiliary means for heating the external air.

12. A malt-kiln, having a furnace, a finishing floor, a withering floorabove the finishing floor, a flue for conducting air to the malt on saidwithering and finishing floors, a pas sage admitting external air tosaid flue, an auxiliary heating device, and a valve for admittingexternal air directly to said flue or for causing it to pass throughsaid auxiliary heating device before being admitted to said flue.

WILLIAM H. PRINZ. Witnesses:

MINNIE A. HUNTER, JOHN L. JAoKsoN.

